#define  _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
void Swap(int* px, int* py)
{
	int tmp = *px;
	*px = *py;
	*py = tmp;
}

int main()
{
	int a = 0;
	int b = 0;
	scanf("%d%d", &a, &b);
	printf("a=%d b=%d\n", a, b);
	Swap(&a, &b);
	printf("a=%d b=%d\n", a, b);
	return 0;
}

